Cellar Walls - renovation

Additional insulation, interior

Install stone wool insulation slabs tightly against each other on the interior side of the cellar wall. Cover the new insulation layer with bricks or building blocks. If you’re putting insulation on the inside only, plan it well as there is a risk for moisture problems. Separate any steel structure from the existing wall with a layer of stone wool board or a similar material.

Gravel filling with good water permeability

Waterproof layer

Frost insulation: PAROC GRS 20 or PAROC COS 10

Waterproof layer (e.g., a bitumen mat around the lower part of the wall).

Note!
Good waterproofing is essential. If your building has timber structures, ensure that no moisture can penetrate the structure–even periodically.

Use stone materials in basements. They have better moisture resistance than timber-based products. If you use timber-based products, they should be pressure impregnated. Always separate them from stone structures with bitumen felt strips. The internal surface of the new structure should be as airtight as possible.

Additional insulation for basement ceilings

If the basement is converted into living space no separate insulation is normally required. Sometimes also better sound insulation may be needed. This is easiest done by installing Paroc acoustic slabs to the ceiling.

PAROC® stands for energy-efficient and fire safe insulation products and solutions of stone wool for new and renovated buildings, HVAC, marine and offshore, acoustics and other industrial applications. Behind those products there is an 80-year history of stonewool production knowhow backed with technical insulation expertise and innovation. We manufacture our products in Finland, Sweden, Lithuania, Poland and Russia, and deliver them to customers in our familiar red-and-white-striped packages. For more information please visit our About Paroc webpages.